Vulnerability Information
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Vulnerability Title
net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: fix use-after-free in ocelot_vlan_del() ocelot_vlan_member_del() will free the struct ocelot_bridge_vlan, so if this is the same as the port's pvid_vlan which we access afterwards, what we're accessing is freed memory. Fix the bug by determining whether to clear ocelot_port->pvid_vlan prior to calling ocelot_vlan_member_del().
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 安全漏洞
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于net:mscc:ocelot模块中发现使用后释放问题。在ocelot_vlan_del函数中，ocelot_vlan_member_del函数会释放struct ocelot_bridge_vlan，但如果这与端口的pvid_vlan相同，则后续访问的是已释放的内存。
CVSS Information
N/A
Vulnerability Type
N/A